[T3] Still too tight

[Keith Park]

Yea, it acts like it gets just hot enough to get tight, this is at 200-210
in the sump, however on the first trip out it got to 225 and that didnt
seize it any worse.  weird!

Fan is tight and blows....

Ill have to check with the clutch.

oil pressure valves were out and checked with the last rebuild, and their
sealing surfaces polished and seats checked, I didnt see any problems with
them.

its NOT the valve train, because... with the engine cool you can feel some
play in the cam gear, its a 0 gear like they all are so it has some play
engaging the crank, when it gets hot that play cannot be felt anymore, so if
the cam were tight the crank would still have loose slop in the gear tooth
play, it does not when hot.

Bearings seemed Normal, no, I just pulled the flywheel that was it, I would
think that after 40 miles or so now if a bearing were seizing I would know
it by now.  I did see just a smidge of play in the #1 main rocked up and
down with the flywheel off, so that one is not overtight at least.  I
measured all the bearings in the bore of the case with snap gauges, the
checked out OK and i Plastigauged the Rod bearings but again..  40 miles, if
something with them were that wrong I think Id know by now... but maybe not.

Keith
'

Topnotch Restorations
topnotch at nycap.rr.com
http://www.topnotchresto.com
71 Squareback  "Hothe"
65 Notchback  "El Baja Rojo"
93 RX7  "Redstur"
95 Chrysler Cirrus Lxi "Cirfogsalot"
"hanging out at the tail end of the bell
curve, and loving every minute of it!" 

-----Original Message-----
From: type3-vwtype3.org [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org]
On Behalf Of Jim Adney
Sent: Wednesday, August 29, 2018 8:30 AM
To: type3 at vwtype3.org
Subject: Re: [T3] Still too tight

On 28 Aug 2018 at 20:40, Keith Park wrote:

> I checked the end play, it was still at .003, I set it up to .005, engine
> is back in and same problem, its tight when fully up to temp, still cranks
> but slowly and is stiff when turning over by hand. 
> 
> Runs well, no expensive sounds, put about another 15 miles on it and
> little if any improvement. It quickly free's up after its been off just a
> few minutes. 

I don't know what to think, Keith. David is right, that whatever the problem
is, 
it must be something that can cool down quickly, which excludes most of the 
internal engine components. Could there be some sort of problem with the 
fan?

Is the engine still tight with the clutch pedal depressed? Yes, takes 2
people 
to check.

I suggest that you check the oil pressure control valves, to make sure they 
are installed correctly, with the right pistons and springs, and are not
seized 
in their bores.

Could you get the engine hot and then remove the rocker shafts quickly 
enough to see if removing them frees up the engine? (Or maybe just run the 
engine with the valve covers off long enough to verify that there's oil
coming 
out each of the pushrods.)

When you dropped the engine this time, I assume you didn't take it all the 
way apart, so you don't know about any possible bearing problems inside, 
right? But, as Dave points out, how could that cool down fast enough?

-- 
*******************************
Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
*******************************

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